New! View global litigation for patent families

US6285791B1 - Transmission method for video or moving pictures by compressing block differences - Google Patents

Transmission method for video or moving pictures by compressing block differences Download PDF

Info

Publication number
US6285791B1
US6285791B1 US08987360 US98736097A US6285791B1 US 6285791 B1 US6285791 B1 US 6285791B1 US 08987360 US08987360 US 08987360 US 98736097 A US98736097 A US 98736097A US 6285791 B1 US6285791 B1 US 6285791B1
Authority
US
Grant status
Grant
Patent type
Prior art keywords
block
frame
comparison
invention
method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08987360
Inventor
Dan Björklund
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intellectual Ventures I LLC
Original Assignee
Telecom Finland Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/507Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction using conditional replenishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability

Abstract

A method is disclosed for transmitting video images over a data communication network, in which method the video image is encoded at the sending end, transmitted, and decoded at the receiving end. The first frame is compressed and transmitted to the receiving end where it is stored in image memory. A copy of the first frame is retained at the transmitting end and divided into blocks. The next frame is also divided into blocks. The blocks of the first frame and the blocks of the next frame are compared to determine a block difference for each block. For each block, the difference between successive blocks is compressed and transmitted if the block difference for the block exceeds a predetermined threshold.

Description

This application claims benefit of Provisional No. 60/032,806 filed Dec. 9, 1996.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates in general to a data transmission method, and more particularly to a method for transmitting video images in a data communication network.

2. Description of Related Art

In the prior art, several methods for the transmission of video images in a data communication network are known. A feature typical of these methods is that the image is compressed in some way before transmission to allow faster transmission. Among the prior-art compression methods are, e.g., MPEG (Moving Pictures Experts Group), and H.261 and H.263 standardized by ITU (International Telecommunication Union, ITU).

The prior-art compression methods are characterized in that, instead of transmitting complete frames, only the differences between successive frames are transmitted. Moreover, predictive coding is used to reduce temporal redundancy, and modification coding to reduce spatial redundancy.

A problem with the prior-art methods is that they apply compression to entire frames and transmit all differences between successive frames. Consequently, the amount of data to be transmitted remains too high for the needs of narrow-band data communication networks. For example, if an MPEG-compressed video image with a resolution of 388*288 is transmitted over a GSM network, the transmission of a single frame may take as long as 15 seconds.

It can be seen then that there is a need for a method for processing a video image so that the image can be readily transmitted even in a narrow-band data communication network, such as a GSM network.

SUMMARY OF THE INVENTION

To overcome the limitations in the prior art described above, and to overcome other limitations that will become apparent upon reading and understanding the present specification, the present invention discloses a data transmission method.

The present invention solves the above-described problems by providing a method for processing a video image so that the image can be readily transmitted even in a narrow-band data communication network, such as a GSM network.

In the method of the present invention for the transmission of video images over a data communication network, the video image is encoded at the sending end, transmitted, and decoded at the receiving end. The equipment at the sending end comprises a reference memory, in which the first frame of the video image is stored. Next, the first frame is compressed and transmitted. At the receiving end, the frame is stored in an image memory. The first frame stored in the reference memory and the next frame in sequence are divided into blocks. Mutually corresponding blocks of the frames are compared with each other to determine a block difference. If the block difference exceeds a specified threshold, then the difference between the blocks is compressed and transmitted. In addition, the block is stored in the reference memory. At the receiving end, the difference is integrated into the image to be presented.

Other embodiments of a system in accordance with the principles of the invention may include alternative or optional additional aspects. One such aspect of the present invention is that the frame is divided into blocks having the size of 8*8 pixels.

Another aspect of the present invention is that the block difference is determined by comparing some of the mutually corresponding pixels contained in blocks corresponding to each other and calculating the number of pixels differing from each other.

Another aspect of the present invention is that the comparison of pixels is performed using some of the bits indicating pixel value.

Another aspect of the present invention is that the comparison of pixels is performed based on the luminance component of the pixels.

Another aspect of the present invention is that a predetermined pat of each frame is transmitted and integrated into the image to be presented.

Another aspect of the present invention is that the compression method used is the JPEG (Joint Photographic Experts Group, JPEG) method.

As compared with prior art, the present invention has the advantage that it allows a considerable reduction in the amount of data to be transmitted, as the frames are divided into blocks and the difference between blocks corresponding to each other is only transmitted if the block difference is sufficiently large. This makes it possible to transmit video images in a narrow-band network as well. The method is particularly well suited for the transmission of video images obtained from a mainly stationary camera, such as a monitoring camera.

These and various other advantages and features of novelty which characterize the invention are pointed out with particularity in the claims annexed hereto and form a part hereof. However, for a better understanding of the invention, its advantages, and the objects obtained by its use, reference should be made to the drawings which form a further part hereof, and to accompanying descriptive matter, in which there are illustrated and described specific examples of an apparatus in accordance with the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

Referring now to the drawings in which like reference numbers represent corresponding parts throughout:

FIG. 1 presents a block diagram of the method of the invention;

FIG. 2 presents a hardware assembly implementing the method of the invention; and

FIG. 3 presents an example of data flow transmitted by the method of the invention.

DETAILED DESCRIPTION OF THE INVENTION

In the following description of the exemplary embodiment, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration the specific embodiment in which the invention may be practiced. It is to be understood that other embodiments may be utilized as structural changes may be made without departing from the scope of the present invention.

The present invention provides a method for processing a video image so that the image can be readily transmitted even in a narrow-band data communication network, such as a GSM network.

FIG. 1 is a flow chart of the method of the invention. The parameter Yp 110, which indicates the value of the Y co-ordinate, is set to zero 112. The first frame of the video image is grabbed 114 and stored in the reference memory 116. The frame is compressed by the JPEG method 118 and transmitted 120. At the receiving end, the frame is decompressed, stored in the image memory and presented.

The next frame is then grabbed for comparison with the first frame 122. The frames are divided into blocks of 8*8 pixels. In blocks corresponding to each other, the luminance component of every second pixel is compared using five most significant bits 124. If the absolute difference is larger than two, then the block difference value is increased by one 126.

If a block difference value exceeding 14 is obtained 130, then the difference between the blocks being compared is large enough to be transmitted. In this case, the difference between the blocks is calculated 132, compressed by the JPEG method 134 and transmitted together with position data 136. In addition, the block under processing is stored in the reference memory 138. If a block difference value exceeding 14 is not obtained 140, steps 132-138 are skipped.

Next, a predetermined part of each frame is transmitted 142. The size of this part is x-resolution * 8 pixels. The position of the predetermined part is shifted by eight pixels downwards between successive frames, in other words the value of the parameter Yp is increased by eight for each frame until it reaches the y-resolution value 144, whereupon the parameter Yp is reset to zero 146.

FIG. 2 presents an example of a hardware assembly 200 implementing the method of the invention. Connected to a television camera, such as a monitoring camera 210, is a device 2 that grabs the frames for processing. The device 220 is further connected to a central processing unit 230, which takes care of image processing at the sending end. The central processing unit 230 communicates with a reference memory 240, which is used for the determination of block difference. The central processing unit 260 at the receiving end decodes the received data. Connected to the central processing unit 260 is an image memory 250, which is used to store the image to be presented. Moreover, the central processing unit 260 is connected to a display unit 270 used to present the image.

FIG. 3 presents an example 300 of the data flow to be transmitted. The frame in the example comprises three blocks 310, 312, 314 whose block differences have been found to be large enough to make it necessary to transmit the difference between successive blocks. These differences make up 192 bytes of data 320, which is compressed by the JPEG method to 5 bytes 330. In addition to the data contained in each block, the data transmitted comprises a step number delta 340, which indicates the position of each block relative to the beginning of the frame and whose value is determined as follows:

0: beginning of frame;

1-244: removed by 8 pixels; and

255: removed by 8*255 pixels from the beginning.

The foregoing description of the exemplary embodiment of the invention has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. It is intended that the scope of the invention be limited not with this detailed description, but rather by the claims appended hereto.

Claims (7)

What is claimed is:
1. A method for transmitting video stream comprising temporally successive frames from a transmitting end to a receiving end in a data communication network, comprising:
a) storing a current frame in a reference memory provided at the transmitting end;
b) compressing said current frame;
c) transmitting the compressed current frame to the receiving end;
d) decompressing the transmitted current frame at the receiving end;
e) storing the decompressed current frame in an image memory provided at the receiving end;
f) dividing a first comparison frame into blocks, said first comparison frame being the frame currently stored in the reference memory;
g) dividing a second comparison frame into blocks, said second comparison frame being the frame temporally subsequent to the frame currently stored in the reference memory;
h) comparing the luminance components of a predetermined number of spatially corresponding pixels of a first comparison block and a second comparison block, said first comparison block being a block of the first comparison frame and said second comparison block being a block of the second comparison frame spatially corresponding to the first comparison block;
i) determining a block comparison parameter equal to the number of said compared luminance components of spatially corresponding pixels the difference between which exceeds a predetermined pixel component threshold;
j) determining a block subtraction value by subtracting each pixel of the first comparison block from a spatially corresponding pixel of the second comparison block, if the determined block comparison parameter exceeds a predetermined parameter threshold;
k) compressing the determined block subtraction value, if the determined block comparison parameter exceeds a predetermined parameter threshold;
l) transmitting the compressed block subtraction value to the receiving end, if the determined block comparison parameter exceeds a predetermined parameter threshold;
m) transmitting block position data to the receiving end indicating the spatial position of the second comparison block, if the determined block comparison parameter exceeds a predetermined parameter threshold;
n) decompressing the transmitted block subtraction value at the receiving end, if the determined block comparison parameter exceeds a predetermined parameter threshold;
o) integrating the decompressed block subtraction value into the frame stored in the image memory using the transmitted block position data, if the determined block comparison parameter exceeds a predetermined parameter threshold;
p) storing the second comparison block in the reference memory;
q) repeating steps h-p with another pair of comparison blocks spatially subsequent to the previously processed pair of comparison blocks until each block of the first comparison frame and the second comparison frame has been processed;
r) transmitting a predetermined part of the second comparison frame to the receiving end and integrating said part into the frame stored in the image memory; and
s) repeating steps f-r with another frame of the video stream temporally subsequent to the previously processed frame.
2. The method of claim 1, wherein said block position data comprises a step number indicating the position of the block relative to the beginning of the frame said block is a part of.
3. The method of claim 2, wherein said predetermined part of the second comparison frame transmitted and integrated into the frame stored in the image memory comprises x-resolution * 8 pixels.
4. The method of claim 3, wherein the position of said predetermined part of the second comparison frame transmitted and integrated into the frame stored in the image memory is shifted downwards by eight pixels between successive frames.
5. The method of claim 4, wherein the step of comparing the luminance components of spatially corresponding pixels is performed by using a predetermined number of most significant bits indicating the value of said luminance component.
6. The method of claim 5, wherein said blocks comprise 8*8 pixels.
7. The method of claim 6, wherein the compression method used is the JPEG method.
US08987360 1996-12-09 1997-12-09 Transmission method for video or moving pictures by compressing block differences Expired - Lifetime US6285791B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US3280696 true 1996-12-09 1996-12-09
US08987360 US6285791B1 (en) 1996-12-09 1997-12-09 Transmission method for video or moving pictures by compressing block differences

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08987360 US6285791B1 (en) 1996-12-09 1997-12-09 Transmission method for video or moving pictures by compressing block differences

Publications (1)

Publication Number Publication Date
US6285791B1 true US6285791B1 (en) 2001-09-04

Family

ID=21866905

Family Applications (1)

Application Number Title Priority Date Filing Date
US08987360 Expired - Lifetime US6285791B1 (en) 1996-12-09 1997-12-09 Transmission method for video or moving pictures by compressing block differences

Country Status (5)

Country Link
US (1) US6285791B1 (en)
EP (1) EP0945024A1 (en)
JP (1) JP2001507880A (en)
FI (1) FI107497B (en)
WO (1) WO1998026603A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002082208A2 (en) * 2001-04-03 2002-10-17 Linguistic Agents Ltd. Fast linguistic parsing system
US20040003104A1 (en) * 2002-06-27 2004-01-01 Ronald Boskovic System for distributing objects to multiple clients
US20050025368A1 (en) * 2003-06-26 2005-02-03 Arkady Glukhovsky Device, method, and system for reduced transmission imaging
US20080101466A1 (en) * 2006-11-01 2008-05-01 Swenson Erik R Network-Based Dynamic Encoding
US20080181498A1 (en) * 2007-01-25 2008-07-31 Swenson Erik R Dynamic client-server video tiling streaming
US9247260B1 (en) 2006-11-01 2016-01-26 Opera Software Ireland Limited Hybrid bitmap-mode encoding

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2155408B1 (en) * 1999-08-09 2001-10-16 Telefonica Sa Device applicable to the capture and real-time transmission of video sequences through data networks of low bandwidth.
US7120194B2 (en) * 1999-12-22 2006-10-10 Neomtel Co. Ltd. System for moving image data using wireless communication and the method of the same
FR2829635A1 (en) * 2001-09-07 2003-03-14 Cit Alcatel of animation image compression Method
US7321623B2 (en) 2002-10-01 2008-01-22 Avocent Corporation Video compression system
US9560371B2 (en) 2003-07-30 2017-01-31 Avocent Corporation Video compression system
JP2006243940A (en) * 2005-03-01 2006-09-14 Oki Electric Ind Co Ltd Camera data transfer device
US7555570B2 (en) 2006-02-17 2009-06-30 Avocent Huntsville Corporation Device and method for configuring a target device
CA2650663A1 (en) 2006-04-28 2007-11-08 Avocent Corporation Dvc delta commands
US20110310980A1 (en) * 2010-06-22 2011-12-22 Qualcomm Mems Technologies, Inc. Apparatus and methods for processing frames of video data across a display interface using a block-based encoding scheme and a tag id

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901363A (en) * 1985-07-31 1990-02-13 International Business Machines Corporation System for compressing bi-level data
US5295077A (en) * 1991-01-23 1994-03-15 Ricoh Company, Ltd. Digital electronic still camera
US5506624A (en) * 1994-07-28 1996-04-09 Silicon Graphics, Inc. Rotating sample of video images
US5543848A (en) * 1992-12-25 1996-08-06 Mitsubishi Denki Kabushiki Kaisha Method and apparatus for filtering and coding images based on characteristics of an input image signal
US5566002A (en) * 1991-04-25 1996-10-15 Canon Kabushiki Kaisha Image coding/decoding method and apparatus
US5703966A (en) * 1995-06-27 1997-12-30 Intel Corporation Block selection using motion estimation error
US5787199A (en) * 1994-12-29 1998-07-28 Daewoo Electronics, Co., Ltd. Apparatus for detecting a foreground region for use in a low bit-rate image signal encoder
US5835147A (en) * 1995-11-19 1998-11-10 State Of Israel/Ministry Of Defense Armament Development Authority-Rafael Method for compression and decompression of a video signal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0767105A (en) * 1993-08-20 1995-03-10 Sony Corp Image encoding method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901363A (en) * 1985-07-31 1990-02-13 International Business Machines Corporation System for compressing bi-level data
US5295077A (en) * 1991-01-23 1994-03-15 Ricoh Company, Ltd. Digital electronic still camera
US5566002A (en) * 1991-04-25 1996-10-15 Canon Kabushiki Kaisha Image coding/decoding method and apparatus
US5790265A (en) * 1991-04-25 1998-08-04 Canon Kabushiki Kaisha Image coding/decoding method and apparatus
US5543848A (en) * 1992-12-25 1996-08-06 Mitsubishi Denki Kabushiki Kaisha Method and apparatus for filtering and coding images based on characteristics of an input image signal
US5506624A (en) * 1994-07-28 1996-04-09 Silicon Graphics, Inc. Rotating sample of video images
US5787199A (en) * 1994-12-29 1998-07-28 Daewoo Electronics, Co., Ltd. Apparatus for detecting a foreground region for use in a low bit-rate image signal encoder
US5703966A (en) * 1995-06-27 1997-12-30 Intel Corporation Block selection using motion estimation error
US5835147A (en) * 1995-11-19 1998-11-10 State Of Israel/Ministry Of Defense Armament Development Authority-Rafael Method for compression and decompression of a video signal

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002082208A2 (en) * 2001-04-03 2002-10-17 Linguistic Agents Ltd. Fast linguistic parsing system
WO2002082208A3 (en) * 2001-04-03 2003-03-13 Linguistic Agents Ltd Fast linguistic parsing system
US20040003104A1 (en) * 2002-06-27 2004-01-01 Ronald Boskovic System for distributing objects to multiple clients
US7043559B2 (en) 2002-06-27 2006-05-09 Seiko Epson Corporation System for distributing objects to multiple clients
US20060168302A1 (en) * 2002-06-27 2006-07-27 Ronald Boskovic System for distributing objects to multiple clients
US20050025368A1 (en) * 2003-06-26 2005-02-03 Arkady Glukhovsky Device, method, and system for reduced transmission imaging
US7492935B2 (en) * 2003-06-26 2009-02-17 Given Imaging Ltd Device, method, and system for reduced transmission imaging
US20080101466A1 (en) * 2006-11-01 2008-05-01 Swenson Erik R Network-Based Dynamic Encoding
US8711929B2 (en) 2006-11-01 2014-04-29 Skyfire Labs, Inc. Network-based dynamic encoding
US9247260B1 (en) 2006-11-01 2016-01-26 Opera Software Ireland Limited Hybrid bitmap-mode encoding
US20080184128A1 (en) * 2007-01-25 2008-07-31 Swenson Erik R Mobile device user interface for remote interaction
US8630512B2 (en) * 2007-01-25 2014-01-14 Skyfire Labs, Inc. Dynamic client-server video tiling streaming
US20080181498A1 (en) * 2007-01-25 2008-07-31 Swenson Erik R Dynamic client-server video tiling streaming

Also Published As

Publication number Publication date Type
JP2001507880A (en) 2001-06-12 application
FI974454A (en) 1998-06-10 application
FI974454D0 (en) grant
FI974454A0 (en) 1997-12-08 application
FI107497B1 (en) grant
FI107497B (en) 2001-08-15 application
EP0945024A1 (en) 1999-09-29 application
WO1998026603A1 (en) 1998-06-18 application

Similar Documents

Publication Publication Date Title
US5434622A (en) Image signal encoding apparatus using adaptive frame/field format compression
US5777678A (en) Predictive sub-band video coding and decoding using motion compensation
US5272527A (en) Picture image monitoring system
US6154494A (en) Variable length coded data processing method and device for performing the same method
US6266370B1 (en) Brightness-variation compensation method and coding/decoding apparatus for moving pictures
US5761438A (en) Apparatus for measuring the amount of traffic of a network at a predetermined timing and compressing data in the packet without changing the size of the packet
US6163574A (en) Motion picture encoding system for either intra-frame encoding or inter-frame encoding
US6414992B1 (en) Optimal encoding of motion compensated video
US5790695A (en) Image coding device for coding image signal to reduce the amount of the information in the image
US5473377A (en) Method for quantizing intra-block DC transform coefficients using the human visual characteristics
US6185253B1 (en) Perceptual compression and robust bit-rate control system
US6275527B1 (en) Pre-quantization in motion compensated video coding
US6504873B1 (en) Filtering based on activities inside the video blocks and at their boundary
US6473558B1 (en) System and method for MPEG reverse play through dynamic assignment of anchor frames
US6208761B1 (en) Video coding
US5485212A (en) Software video compression for teleconferencing
US5796434A (en) System and method for performing motion estimation in the DCT domain with improved efficiency
US5703966A (en) Block selection using motion estimation error
US20060088098A1 (en) Method and arrangement for reducing the volume or rate of an encoded digital video bitstream
US6690307B2 (en) Adaptive variable length coding of digital video
US6201834B1 (en) Method and apparatus for packet loss recovery with standard-based packet video
US5892548A (en) Adaptive quantizer with modification of high frequency coefficients
US4764805A (en) Image transmission system with line averaging preview mode using two-pass block-edge interpolation
US7263125B2 (en) Method and device for indicating quantizer parameters in a video coding system
US20060078048A1 (en) Deblocking filter

Legal Events

Date Code Title Description
AS Assignment

Owner name: TELECOM FINLAND OY, FINLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BJORKLUND, DAN;REEL/FRAME:009104/0436

Effective date: 19980120

AS Assignment

Owner name: SONERA OY, FINLAND

Free format text: CHANGE OF NAME;ASSIGNOR:TELECOM FINLAND OY;REEL/FRAME:010512/0480

Effective date: 19990826

FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: TELIASONERA FINLAND OYJ, FINLAND

Free format text: CHANGE OF NAME;ASSIGNOR:SONERA-YHTYMA OYJ;REEL/FRAME:017176/0783

Effective date: 20030901

Owner name: SONERA-YHTYMA OYJ, FINLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SONERA OY;REEL/FRAME:017176/0265

Effective date: 19990930

Owner name: SONERA-YHTYMA OYJ, FINLAND

Free format text: MERGER;ASSIGNOR:SONERA OY;REEL/FRAME:017176/0779

Effective date: 19990930

AS Assignment

Owner name: DATA ADVISORS LLC, NEVADA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TELIASONERA AB;REEL/FRAME:017089/0260

Effective date: 20050422

AS Assignment

Owner name: DATA ADVISORS LLC, NEVADA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TELIASONERA AB;TELIASONERA FINLAND OYJ;REEL/FRAME:018313/0371

Effective date: 20050422

FPAY Fee payment

Year of fee payment: 8

AS Assignment

Owner name: INTELLECTUAL VENTURES I LLC, DELAWARE

Free format text: MERGER;ASSIGNOR:DATA ADVISORS LLC;REEL/FRAME:027682/0187

Effective date: 20120206

FPAY Fee payment

Year of fee payment: 12